Internal expansion positioning mechanism for stator welding

Abstract

The utility model discloses an internal expansion positioning mechanism for stator welding. The internal expansion positioning mechanism comprises a bottom supporting moving frame and a bottom connecting sliding block arranged at the bottom of the bottom supporting moving frame. An expansion tool is arranged on the upper side of the bottom supporting moving frame, a rotary expansion power module is arranged on the rear side of the rotary force arm, a cam groove disc is arranged on the upper side face of the expansion tool, a cam groove body is formed in the cam groove disc, and a yellow expansion block is arranged in the middle of the cam groove body. The tail end of the yellow expansion block is rotationally connected with the expansion tool through an arranged cam follower, the robot places a stator to be welded into the expansion tool, rotates, expands and positions the stator, the reverse stress supporting mechanism stretches out before press fitting, downward pressure is overcome, the mechanism adopts the design that a servo electric cylinder is used for jacking, and a pneumatic lengthened force arm rotates to expand the inner supporting block, and the work efficiency is improved. The inner side welding hole of the stator is rapidly and accurately positioned, the concentricity of the stator is not affected, and the inner hole positioning problem of the stator in the welding process is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the relevant technical field of stator processing, and particularly relates to a stator welding inner expansion positioning mechanism. BACKGROUND

[0002] The stator is the stationary part of the motor or generator, mainly composed of stator core, stator winding and machine base. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate (output) current. Stator welding is a key step in the motor manufacturing process, the main purpose of which is to connect each silicon steel sheet of the stator core together to form a whole, so as to improve the mechanical strength and stability of the stator.

[0003] The stator welding inner expansion positioning mechanism is a device used in the process of motor stator welding, which mainly functions to adaptively overcome the vibration and shaking generated in the welding process, to ensure the accuracy and stability of the welding. This mechanism usually includes welding base, spring, pressing block and contact block components, which work together to adapt to the dynamic changes in the welding process.

[0004] The stator welding inner expansion positioning mechanism is widely used in the motor manufacturing industry, especially in the process of stator welding. It can significantly improve the efficiency and quality of welding, and reduce product defects caused by inaccurate welding.

[0005] The technology of stator welding inner expansion positioning mechanism is constantly developing to meet the growing needs of the motor manufacturing industry.

[0006] However, the traditional stator welding inner expansion positioning mechanism is not accurate in positioning before laser welding, because the traditional stator welding positioning is only realized by opening the cylinder, which requires a small space and has poor centering accuracy. This traditional fixing method is difficult to meet when small diameter stators appear.

[0007] The utility model is improved for the above problems, and specifically relates to an improved stator welding inner expansion positioning mechanism. CONTENT OF THE UTILITY MODEL

[0008] The utility model aims to provide a stator welding inner expansion positioning mechanism to solve the problem of inaccurate positioning of the traditional stator welding inner expansion positioning mechanism before laser welding, because the traditional stator welding positioning is only realized by opening the cylinder, which requires a small space and has poor centering accuracy. This traditional fixing method is difficult to meet when small diameter stators appear.

[0009] In order to achieve the above object, the utility model provides the following technical scheme: a stator welding inner expansion positioning mechanism, including bottom support moving frame and bottom connecting sliding block which is arranged at the bottom position of the bottom support moving frame,

[0010] The rear bottom position of the bottom support moving frame is provided with a module up-down servo air cylinder, the upper side position of the bottom support moving frame is provided with an expansion tool, the right side position of the expansion tool is provided with a rotary force arm, the rear side position of the rotary force arm is provided with a rotary expansion power module, the front side position of the expansion tool is provided with a reverse support module, the upper side position of the expansion tool is provided with a cam groove disc, the cam groove disc is provided with a cam groove body, the middle position of the cam groove body is provided with a yellow expansion block, the tail end of the yellow expansion block is rotationally connected with the expansion tool through a cam follower, the robot puts the stator to be welded into the expansion tool, rotates and expands and positions the stator, and the pre-pressing reverse stress support mechanism is extended to overcome the downward pressure.

[0011] Preferably, the upper side position of the yellow expansion block is provided with a middle connecting cover disc, and the middle connecting cover disc is connected with the expansion tool through screws.

[0012] Preferably, the upper side position of the middle connecting cover disc is provided with an upper connecting cover disc, the upper connecting cover disc is connected with the middle connecting cover disc through a clamping mode, and the middle positions of the middle connecting cover disc and the upper connecting cover disc are both provided with through grooves.

[0013] Preferably, the bottom position of the bottom connecting sliding block is provided with a horizontal transplanting module, and the upper side of the horizontal transplanting module is provided with a moving connection guide rail.

[0014] Preferably, the tail end position of the moving connection guide rail is provided with a support connecting block, and the support connecting block is connected with the horizontal transplanting module through screws.

[0015] Preferably, the bottom position of the horizontal transplanting module is provided with a side surface support base, the upper side position close to the edge of the side surface support base is provided with a side surface connecting guide rail, and the side surface connecting guide rail is connected with the side surface support base through screws.

[0016] Preferably, the bottom position of the side surface support base is provided with a bottom support leg, and the bottom support leg is connected with the side surface support base through a flange piece.

[0017] Preferably, the bottom position of the bottom support leg is provided with a mounting connecting support base plate, the mounting connecting support base plate is an integral structure with the bottom support leg, and the mounting connecting support base plate is provided with a threaded through hole.

[0018] Preferably, the side surface support chassis is provided with a side surface connecting driving chain at the side surface position, and the end position of the side surface connecting driving chain is provided with a side surface connecting support block.

[0019] Compared with the prior art, the stator welding inner expansion positioning mechanism has the following beneficial effects:

[0020] In the stator welding inner expansion positioning mechanism, the rear bottom position of the bottom support moving frame is provided with a module up-down servo air cylinder, the upper side position of the bottom support moving frame is provided with an expansion tool, the right side position of the expansion tool is provided with a rotary force arm, the rear side position of the rotary force arm is provided with a rotary expansion power module, the front side position of the expansion tool is provided with a reverse support module, the upper side position of the expansion tool is provided with a cam groove disc, the cam groove disc is provided with a cam groove body, the middle position of the cam groove body is provided with a yellow expansion block, the end of the yellow expansion block is rotationally connected with the expansion tool through the cam follower, the robot puts the to-be-welded stator into the expansion tool, rotates and expands the stator to position the stator, the pre-pressing reverse force support mechanism is extended to overcome the downward pressure, the mechanism adopts a servo cylinder jacking, a pneumatic lengthened force arm rotating expansion inner support block design, and the inside of the stator is accurately positioned, the concentricity of the stator is not affected, and the inner hole positioning problem of the stator in welding is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the stator welding inner expansion positioning mechanism of the utility model.

[0022] Figure 2 It is a top view structure schematic view of the stator welding inner expansion positioning mechanism of the utility model.

[0023] Figure 3 It is a side view structure schematic view of the stator welding inner expansion positioning mechanism of the utility model.

[0024] Figure 4 It is a top view enlarged structure schematic view of the expansion tool position of the stator welding inner expansion positioning mechanism of the utility model.

[0025] Figure 5 It is an enlarged structure schematic view of the expansion tool position of the stator welding inner expansion positioning mechanism of the utility model.

[0026] In the figure: 1, rotating expansion power module; 2, reverse support module; 3, horizontal transplanting module; 4, expansion tool; 5, side connecting driving chain; 6, bottom support moving frame; 7, moving connection guide rail; 8, support connecting block; 9, side connecting guide rail; 10, bottom support leg; 11, installation connecting support chassis; 12, side connecting support block; 13, bottom connecting sliding block; 14, module up-down servo air cylinder; 15, middle connecting cover disc; 16, cam groove disc; 17, cam groove body; 18, yellow expansion block; 19, upper connecting cover disc; 20, rotating force arm; 21, side support chassis. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] The utility model provides a kind of stator welding inner expansion positioning mechanism as shown in Figures 1-5 It includes bottom support moving frame 6 and the bottom connecting sliding block 13 arranged at the bottom position of bottom support moving frame 6 thereof, servo air cylinder 14 is arranged at the rear bottom position of bottom support moving frame 6, expansion tool 4 is arranged at the upper side position of bottom support moving frame 6, rotating force arm 20 is arranged at the right side position of expansion tool 4, rotating expansion power module 1 is arranged at the rear side position of rotating force arm 20, reverse support module 2 is arranged at the front side position of expansion tool 4, cam groove disc 16 is arranged at the upper side position of expansion tool 4, cam groove body 17 is arranged on cam groove disc 16, yellow expansion block 18 is arranged at the middle position of cam groove body 17, yellow expansion block 18 is rotationally connected with expansion tool 4 through the cam follower arranged at the end thereof, robot is placed in expansion tool 4 with the stator to be welded, rotating expansion and positioning stator, reverse force support mechanism is extended before pressing, overcome the pressure, this mechanism adopts servo cylinder jacking, the design of pneumatic lengthening force arm rotating expansion inner support block, accurately position the inside welding hole of stator, do not affect the concentricity of stator, improve the inner hole positioning problem of stator in welding.

[0029] As shown in Figure 4 And Figure 5As shown, the upper side of the yellow bulging block 18 is provided with a middle connecting cover disc 15, which is connected with the bulging tool 4 by screws. The upper side of the middle connecting cover disc 15 is provided with an upper connecting cover disc 19, which is connected with the middle connecting cover disc 15 by clamping. The middle positions of the middle connecting cover disc 15 and the upper connecting cover disc 19 are provided with through grooves. The upper connecting cover disc 19 and the middle connecting cover disc 15 can cover and shield the yellow bulging block 18. The through grooves between the middle connecting cover disc 15 and the upper connecting cover disc 19 are used to place and position the stator.

[0030] As shown in Figure 1 and Figure 2 , the bottom position of the bottom connecting sliding block 13 is provided with a horizontal transplanting module 3. The upper side of the horizontal transplanting module 3 is provided with a moving connecting guide rail 7. The end position of the moving connecting guide rail 7 is provided with a support connecting block 8, which is connected with the horizontal transplanting module 3 by screws. The setting of the moving connecting guide rail 7 can make the whole machining structure on its upper side move to a specified position for operation by a robot to place a stator and transfer to a specified position for welding machining operation.

[0031] As shown in Figure 1 and Figure 2 , the bottom position of the horizontal transplanting module 3 is provided with a side support base 21. The upper side of the side support base 21 near the edge is provided with a side connecting guide rail 9, which is connected with the side support base 21 by screws. The setting of the side connecting guide rail 9 can play an auxiliary guiding role.

[0032] As shown in Figure 1 and Figure 2 , the bottom position of the side support base 21 is provided with a bottom support leg 10, which is connected with the side support base 21 by screws through flange plates. The bottom support leg 10 can make the side support base 21 improve a certain height, which is convenient for reducing the distance that the mechanical arm needs to run, thereby reducing the waste of resources.

[0033] As shown in Figure 1 and Figure 2 , the bottom position of the bottom support leg 10 is provided with a mounting connecting support base 11, which is an integral structure with the bottom support leg 10. The mounting connecting support base 11 is provided with threaded holes. The mounting connecting support base 11 can be screwed into a specified threaded hole through the threaded holes by screws to install and fix the bottom support leg 10 at a specified position.

[0034] As shown in Figure 1 and Figure 2As shown, the side connecting driving chain 5 is arranged at the side position of the side supporting base 21, and the side connecting supporting block 12 is arranged at the end position of the side connecting driving chain 5, the side connecting driving chain 5 can be driven by the motor to make the bottom supporting moving frame 6 have a driving force for moving as a whole, and the side connecting supporting block 12 can limit the moving distance and can also play an auxiliary supporting role.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A stator welding inner expansion positioning mechanism, comprising a bottom support moving frame (6) and a bottom connecting slider (13) arranged at the bottom position of the bottom support moving frame (6); characterized in that A module up-down servo cylinder (14) is arranged at the rear bottom position of the bottom support moving frame (6), an expansion tool (4) is arranged at the upper position of the bottom support moving frame (6), a rotary force arm (20) is arranged at the right position of the expansion tool (4), a rotary expansion power module (1) is arranged at the rear position of the rotary force arm (20), a reverse support module (2) is arranged at the front position of the expansion tool (4), a cam groove disc (16) is arranged at the upper surface position of the expansion tool (4), a cam groove body (17) is arranged on the cam groove disc (16), a yellow expansion block (18) is arranged at the middle position of the cam groove body (17), the end of the yellow expansion block (18) is rotationally connected with the expansion tool (4) through the arranged cam follower, the robot puts the stator to be welded into the expansion tool (4), rotates and expands to position the stator, and the pre-pressing reverse force support mechanism is extended to overcome the downward pressure.

2. A stator welded internal expansion positioning mechanism according to claim 1, characterized in that: A middle connecting cover disc (15) is arranged at the upper position of the yellow expansion block (18), and the middle connecting cover disc (15) is installed and connected with the expansion tool (4) by screws.

3. A stator welded internal expansion positioning mechanism as claimed in claim 2, wherein: An upper connecting cover disc (19) is arranged at the upper position of the middle connecting cover disc (15), the upper connecting cover disc (19) is installed and connected with the middle connecting cover disc (15) in a clamping manner, and through grooves are arranged at the middle positions of the middle connecting cover disc (15) and the upper connecting cover disc (19).

4. A stator welded internal expansion positioning mechanism as claimed in claim 1, wherein: A horizontal transplanting module (3) is arranged at the bottom position of the bottom connecting slider (13), and a moving connecting guide rail (7) is arranged at the upper side of the horizontal transplanting module (3).

5. A stator welded internal expansion positioning mechanism as claimed in claim 4, wherein: A support connecting block (8) is arranged at the end position of the moving connecting guide rail (7), and the support connecting block (8) is installed and connected with the horizontal transplanting module (3) by screws.

6. A stator welded internal expansion positioning mechanism as claimed in claim 4, wherein: A side surface support base (21) is arranged at the bottom position of the horizontal transplanting module (3), a side surface connecting guide rail (9) is arranged at the upper position close to the edge of the side surface support base (21), and the side surface connecting guide rail (9) is installed and connected with the side surface support base (21) by screws.

7. A stator welded internal expansion positioning mechanism as claimed in claim 6, wherein: A bottom support leg (10) is arranged at the bottom position of the side surface support base (21), and the bottom support leg (10) is installed and connected with the side surface support base (21) by screws penetrating flange sheets.

8. A stator welded internal expansion positioning mechanism as claimed in claim 7, wherein: An installation connecting support base plate (11) is arranged at the bottom position of the bottom support leg (10), the installation connecting support base plate (11) is an integral structure with the bottom support leg (10), and threaded through holes are arranged on the installation connecting support base plate (11).

9. A stator welded internal expansion positioning mechanism as claimed in claim 6, wherein: A side surface connecting drive chain (5) is arranged at the side surface position of the side surface support base (21), and a side surface connecting support block (12) is arranged at the end position of the side surface connecting drive chain (5).

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